Landslide hazard assessment in preliminary exploration of mineral deposits in north-eastern Cuba

In the northeastern region of Cuba, the landslides are frequent in areas with mineral deposits in exploitation and prospective areas of mineral deposits. The assessment of the threat of landslides is of great importance for the future projection of geological exploration tasks and for the safety in the extraction of mineral resources. A statistical model, integrated with 6 predictors, was presented to estimate the threat of landslides in northeastern Cuba. The predictors analyzed were average annual rainfall, slope angle, elevation, soil type, distance to faults, and rock type. The model was developed using the multinomial logistic regression method. To validate the model, an inventory of landslides in the area was used. The results showed that, for the data set used to establish the model, the predictor variables "Average annual rainfall", "Slope angle" and "Rock type" have statistically significant effects on the change in the hazard category. The adjusted statistical model showed that landslides have a high probability of occurring in the “High” and “Very High” danger zones, in the northeast of Cuba and in its exploitation zones and prospective areas.

Pospehov G. B., Savón-Vaciano Yusmira Landslide hazard assessment in preliminary exploration of mineral deposits in north-eastern Cuba. MIAB. Mining Inf. Anal. Bull. 2024;(12-1):178-192. DOI: 10.25018/0236_1493_2024_121_0_178.

G.B. Pospehov¹, Cand. Sci. (Geol. Mineral.), Head of Laboratory, e-mail: pospehov@spmi.ru, ORCID ID: 0000-0001-9090-5150,
Yusmira Savón-Vaciano¹, Graduate Student, e-mail: yusmirasvaciano@gmail.com, ORCID ID: 0000-0002-9640-8478,
¹ Empress Catherine II Saint-Petersburg Mining University, 199106, Saint-Petersburg, Russia.

G.B. Pospehov, e-mail: pospehov@spmi.ru.

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